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(11)

EP 4 305 145 A1

(12)

(43) Date of publication: 17.01.2024 Bulletin 2024/03 (21) Application number: 22710616.8 (22) Date of filing: 08.03.2022

(51) International Patent Classification (IPC):  C11D 3/37(2006.01) C11D 11/00(2006.01) (52) Cooperative Patent Classification (CPC): C11D 3/3723; C11D 11/0047; C11D 3/3773; C09K 13/00 (86) International application number: PCT/EP2022/055929 (87) International publication number: WO 2022/189448 (15.09.2022 Gazette 2022/37)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 11.03.2021 JP 2021039100 (71) Applicant: Merck Patent GmbH 64293 Darmstadt (DE)	(72) Inventors: KINUTA, Takafumi Kakegawa-shi, Shizuoka 437--1412 (JP) NAGAHARA, Tatsuro Kakegawa-shi, Shizuoka 437--1412 (JP) (74) Representative: Rippel, Hans Christoph  Patentanwälte Isenbruck Bösl Hörschler PartG mbB Eastsite One Seckenheimer Landstrasse 4 68163 Mannheim 68163 Mannheim (DE)